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Charles H. (Hobie) Perry

Research Soil Scientist
Forest Inventory & Analysis
1992 Folwell
St. Paul, 55108
Phone: 651-649-5191

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Current Research

I work in the Forest Inventory and Analysis (FIA) Research Work Unit as a Research Soil Scientist. I have national FIA responsibilities as the eastern U.S. Soils Indicator Advisor for Phase 3 forest health monitoring. In that role, I coordinate nationwide soils data collection, analysis, and dissemination on the Phase 3 plots with the western U.S. Indicator Advisor, Michael Amacher. I serve as the lead analyst for the State of Wisconsin, and I also contribute to core reporting in other States.

I have additional research responsibilities. These include development of methods for estimating the soils component of carbon measures, development of soils-related spatial products, collaboration with other Northern Station FIA scientists to enhance the quality of FIA estimates and to contribute to ongoing studies (e.g., productivity and diversity), and collaboration with government, university, and other scientists.

Research Interests

  1. Carbon stored in the soil profile represents the largest fraction of carbon stored in forest ecosystems. I am building a spatially explicit database of soil carbon storage that can be used to test and validate extant models.
  2. The Phase 3 data are collected on a grid where one plot represents approximately 95,000 acres of forest land, and spatial data products are an important resource created from FIA data. The traditional method of summarizing soils data to soil order may not be appropriate for regional analyses. Other topographic or land resource area models may be more appropriate. I am analyzing different methods of generalizing and summarizing our data across varying spatial scales.
  3. Mercury is a pollutant that is primarily accumulated in forests through atmospheric deposition. Upland soils are sinks for mercury. Forest fires release mercury into the atmosphere when the forest floor is consumed, while mercury concentration in the mineral soil may be unaffected. As industrial emissions come under increasing regulation, the contribution of forest fires to the mercury budget is an increasingly significant unknown. I am collaborating with U.S. Geological Survey and Forest Service scientists to create an accurate inventory of forest soil mercury.
  4. The effectiveness of a soil inventory is dependent upon its ability to make meaningful measurements of the properties of interest. Some properties currently measured or estimated by the field protocol could also be measured by other means, so I am assessing field protocols is assure to the validity and utility of FIA data.

Please contact me if you would like to collaborate on any of these or other related issues.

Why This Research is Important

The soil resource is the foundation of the forest ecosystem. Soil data collected and spatial products produced by FIA are of vital importance to decision makers. For example, both regional and more detailed state estimates of forest carbon sequestration are underway. The soils component of these estimates are very uncertain or based upon databases that are increasingly out-of-date. Only FIA data is a rolling annual inventory of the forest soil resource.

Education

  • University of Minnesota, Ph.D. Forestry, 1998
  • University of Minnesota, M.S. Forestry, 1993
  • University of Michigan, A.B. Philosophy, 1989

Professional Experience

  • Adjunct Faculty University of Wisconsin
    2010 - Current
  • Adjunct Associate Professor University of Minnesota
    2004 - Current
  • Assistant Professor Humboldt State University
    1999 - 2004
    Department of Forestry and Watershed Management
  • Post-doctoral Research Associate University of Minnesota
    1998 - 1999

Professional Organizations

  • Soil Science Society of America, Member (1997 - Current)
  • American Geophysical Union, Member (1993 - Current)

Featured Publications & Products

Publications & Products

  • Knoot, T.G.; Shea, M.E.; Schulte, L.A.; Tyndall, J.C.; Nelson, M.D.; Perry, C.H.; Palik, B.J. 2015. Forest change in the Driftless Area of the Midwest: From a preferred to undesirable future. Forest Ecology and Management. 341: 110-120.
  • Perry, Charles H. 2015. Forests of Wisconsin, 2014. Resource Update FS-43. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 4 p.
  • Chimner, Rodney A.; Ott, Cassandra A.; Perry, Charles H.; Kolka, Randall K. 2014. Developing and evaluating rapid field methods to estimate peat carbon. Wetlands. 34(6): 1241-1246.
  • Perry, Charles H. 2014. Forests of Wisconsin, 2013. Resource Update FS-6. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 4 p.
  • Perry, C.H. 2013. Wisconsin's forest resources, 2012. Res. Note NRS-193. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 4 p.
  • Woodall, Christopher W.; Perry, Charles H.; Westfall, James A. 2012. An empirical assessment of forest floor carbon stock components across the United States. Forest Ecology and Management. 269: 1-9.
  • Lister, Tonya W.; Gladders, Glenn; Barnett, Charles J.; Brand, Gary J.; Butler, Brett J.; Crocker, Susan J.; Domke, Grant M.; Griffith, Douglas M.; Hatfield, Mark A.; Kurtz, Cassandra M.; Lister, Andrew J.; Morin, Randall S.; Moser, W. Keith; Nelson, Mark D.; Perry, Charles H.; Piva, Ronald J.; Riemann, Rachel; Woodall, Christopher W. 2012. Delaware's Forests 2008. Resour. Bull. NRS-62. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 56 p. [DVD included].
  • Stueve, Kirk M.; Housman, Ian W.; Zimmerman, Patrick L.; Nelson, Mark D.; Webb, Jeremy; Perry, Charles H.; Chastain, Robert A.; Gormanson, Dale D.; Huang, Chengquan; Healey, Sean P.; Cohen, Warren B. 2012. Improving automated disturbance maps using snow-covered landsat time series stacks. In: Morin, Randall S.; Liknes, Greg C., comps. Moving from status to trends: Forest Inventory and Analysis (FIA) symposium 2012; 2012 December 4-6; Baltimore, MD. Gen. Tech. Rep. NRS-P-105. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. [CD-ROM]: 137-142.
  • Nelson, Mark; Stueve, Kirk; Perry, Charles; Gormanson, Dale; Huang, Chengquan; Healey, Sean. 2012. Mapping young forest in Wisconsin. Res. Note NRS-154. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 5 p.
  • Widmann, Richard H.; Crawford, Sloane; Barnett, Charles; Butler, Brett J.; Domke, Grant M.; Griffith, Douglas M.; Hatfield, Mark A.; Kurtz, Cassandra M.; Lister, Tonya W.; Morin, Randall S.; Moser, W. Keith; Perry, Charles H.; Riemann, Rachel; Woodall, Christopher W. 2012. New York's Forests 2007. New York's Forests 2007. Resour. Bull. NRS-65. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 64 p. [DVD included].
  • Perry, Charles H.; Amacher, Michael C. 2012. Patterns of soil calcium and aluminum across the conterminous United States (Chapter 9). In: Potter, K. M.; Conkling, B. L., eds. Forest Health Monitoring: 2008 National Technical Report. GTR-SRS-158. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. p. 119-130.
  • Kolka, Randy; Steber, Aaron; Brooks, Ken; Perry, Charles H.; Powers, Matt. 2012. Relationships between Soil compaction and harvest season, soil texture, and landscape position for aspen forests. Northern Journal of Applied Forestry. 29(1): 21-25.
  • Liknes, Greg C.; Woodall, Christopher W.; Perry, Charles H. 2012. Using inventory data to determine the impact of drought on tree mortality. In: McWilliams, Will; Roesch, Francis A. eds. 2012. Monitoring Across Borders: 2010 Joint Meeting of the Forest Inventory and Analysis (FIA) Symposium and the Southern Mensurationists. e-Gen. Tech. Rep. SRS-157. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. 109-112.
  • Widmann, Richard H.; Cook, Gregory W.; Barnett, Charles J.; Butler, Brett J.; Griffith, Douglas M.; Hatfield, Mark A.; Kurtz, Cassandra M.; Morin, Randall S.; Moser, W. Keith; Perry, Charles H.; Piva, Ronald J.; Riemann, Rachel; Woodall, Christopher W. 2012. West Virginia's Forests 2008. Resour. Bull. NRS-61 Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 64 p. [DVD included].
  • Perry, Charles H.; Everson, Vern A.; Butler, Brett J.; Crocker, Susan J.; Dahir, Sally E.; Diss-Torrance, Andrea L.; Domke, Grant M; Gormanson, Dale D.; Herrick, Sarah K.; Hubbard, Steven S.; Mace, Terry R.; Miles, Patrick D.; Nelson, Mark D.; Rodeout, Richard B.; Saunders, Luke T.; Stueve, Kirk M.; Wilson, Barry T.; Woodall, Christopher W. 2012. Wisconsin's Forests 2009. Resour. Bull. NRS-67. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 62 p. [Includes DVD].
  • Perry, C.H. 2012. Wisconsin's forest resources, 2011. Res. Note NRS-136. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 4 p.
  • Stueve, Kirk M.; Perry, Charles H. (Hobie); Nelson, Mark D.; Healey, Sean P.; Hill, Andrew D.; Moisen, Gretchen G.; Cohen, Warren B.; Gormanson, Dale D.; Huang, Chengquan. 2011. Ecological importance of intermediate windstorms rivals large, infrequent disturbances in the northern Great Lakes. Ecosphere 2:art2. [doi:10.1890/ES10-00062.1] .
  • Woodall, Christopher W.; Webb, Mark N.; Wilson, Barry T.; Settle, Jeff; Piva, Ron J.; Perry, Charles H.; Meneguzzo, Dacia M.; Crocker, Susan J.; Butler, Brett J.; Hansen, Mark; Hatfield, Mark; Brand, Gary; Barnett, Charles. 2011. Indiana's Forests 2008. Resour. Bull. NRS-45. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 56 p. [CD included].
  • Nelson, Mark D.; Brewer, Matt; Woodall, Christopher W.; Perry, Charles H.; Domke, Grant M.; Piva, Ronald J.; Kurtz, Cassandra M.; Moser, W. Keith; Lister, Tonya W.; Butler, Brett J.; Meneguzzo, Dacia M.; Miles, Patrick D.; Barnett, Charles J.; Gormanson, Dale. 2011. Iowa's Forests 2008. Resour. Bull. NRS-52. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 48 p. [DVD included].
  • McCaskill, George L.; McWilliams, William H.; Barnett, Charles J.; Butler, Brett J.; Hatfield, Mark A.; Kurtz, Cassandra M.; Morin, Randall S.; Moser, W. Keith; Perry, Charles H.; Woodall, Christopher W. 2011. Maine's forests 2008. Resour. Bull. NRS- 48. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 62 p. [DVD included].
  • Lister, T.W.; Perdue, J.L.; Barnett, C.J.; Butler, B.J.; Crocker, S.J.; Domke, G.M.; Griffith, D.; Hatfield, M.A.; Kurtz, C.M.; Lister, A.J.; Morin, R.S.; Moser, W.K.; Nelson, M.D.; Perry, C.H.; Piva, R.J.; Riemann, R.; Widmann, R.; Woodall, C.W. 2011. Maryland's Forests 2008. Resour. Bull. NRS-58. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 60 p. [DVD included].
  • Miles, Patrick D.; Heinzen, David; Mielke, Manfred E.; Woodall, Christopher W.; Butler, Brett J.; Piva, Ron J.; Meneguzzo, Dacia M.; Perry, Charles H.; Gormanson, Dale D.; Barnett, Charles J. 2011. Minnesota's Forests 2008. Bull. NRS-50. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northen Research Station. 67 p. [DVD included].
  • Morin, Randall S.; Barnett, Chuck J.; Brand, Gary J.; Butler, Brett J.; Domke, Grant M.; Francher, Susan; Hansen, Mark H.; Hatfield, Mark A.; Kurtz, Cassandra M.; Moser, W. Keith; Perry, Charles H.; Piva, Ron; Riemann, Rachel; Woodall, Chris W. 2011. New Hampshire's Forests 2007. Resour. Bull. NRS-53. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 56 p. [DVD included].
  • Crocker, Susan J.; Nelson, Mark D.; Barnett, Charles J.; Brand, Gary J.; Butler, Brett J.; Domke, Grant M.; Hansen, Mark H.; Hatfield, Mark A.; Lister, Tonya W.; Meneguzzo, Dacia M.; Perry, Charles H.; Piva, Ronald J.; Wilson, Barry T.; Woodall, Christopher W.; Zipse, Bill. 2011. New Jersey's forests, 2008. Resour. Bull. NRS-59. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 52 p. [DVD included].
  • Stueve, Kirk M.; Housman, Ian W.; Zimmerman, Patrick L.; Nelson, Mark D.; Webb, Jeremy B.; Perry, Charles H.; Chastain, Robert A.; Gormanson, Dale D.; Huang, Chengquan; Healey, Sean P.; Cohen, Warren B. 2011. Snow-covered Landsat time series stacks improve automated disturbance mapping accuracy in forested landscapes. Remote Sensing of Environment. 115: 3203-3219.
  • Butler, Brett J.; Barnett, Charles J.; Crocker, Susan J.; Domke, Grant M.; Gormanson, Dale ; Hill, William N.; Kurtz, Cassandra M.; Lister, Tonya; Martin, Christopher; Miles, Patrick D.; Morin, Randall; Moser, W. Keith; Nelson, Mark D.; O'Connell, Barbara; Payton, Bruce; Perry, Charles H.; Piva, Ronald J.; Riemann, Rachel; Woodall, Christopher W. 2011. The Forests of Southern New England, 2007: A report on the forest resources of Connecticut, Massachusetts, and Rhode Island. Resour. Bull. NRS-55. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 48 p. [DVD included].
  • Morin, Randall S.; Barnett, Chuck J.; Brand, Gary J.; Butler, Brett J.; De Geus, Robert; Hansen, Mark H.; Hatfield, Mark A.; Kurtz, Cassandra M.; Moser, W. Keith; Perry, Charles H.; Piva, Ron; Riemann, Rachel; Widmann, Richard; Wilmot, Sandy; Woodall, Chris W. 2011. Vermont's Forests 2007. Resour. Bull. NRS-51. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 56 p. [DVD included].
  • Perry, C.H. 2011. Wisconsin's forest resources, 2009. Res. Note NRS-92. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 4 p.
  • Perry, C.H. 2011. Wisconsin's forest resources, 2010. Note NRS-108. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 4 p.
  • Liknes, Greg C.; Perry, Charles H.; Meneguzzo, Dacia M. 2010. Assessing tree cover in agricultural landscapes using high-resolution aerial imagery. Journal of Terrestrial Observation. 2(1): 38-55.
  • Woodall, C.W.; Morin, R.S.; Steinman, J.R.; Perry, C.H. 2010. Comparing evaluations of forest health based on aerial surveys and field inventories: Oak forests in the Northern United States. Ecological Indicators. 10: 713-718.
  • Perry, Charles H.; Nelson, Mark D.; Piva, Ronald J. 2010. Imports and exports of roundwood in the upper Midwestern United States. Chapter 2.. In: Eredics, Peter, ed. Mapping Forestry. Redlands, CA: ESRI Press: 5-8.
  • Woodall, C.W.; Oswalt, C.M.; Westfall, J.A.; Perry, C.H.; Nelson, M.D.; Finley, A.O. 2010. Selecting tree species for testing climate change migration hypotheses using forest inventory data. Forest Ecology and Management. 259: 778-785.
  • Woodall, Christopher W.; Conkling, Barbara L.; Amacher, Michael C.; Coulston, John W.; Jovan, Sarah, Dr.; Perry, Charles H.; Schulz, Beth; Smith, Gretchen C.; Will Wolf, Susan. 2010. The Forest Inventory and Analysis Database Version 4.0: Database Description and Users Manual for Phase 3. Gen. Tech. Rep. NRS-61. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 180 p.
  • Amacher, Michael C.; Perry, Charles H. 2010. The soil indicator of forest health in the Forest Inventory and Analysis Program. In: Page-Dumroese, Deborah; Neary, Daniel; Trettin, Carl, tech. eds. Scientific background for soil monitoring on National Forests and Rangelands: workshop proceedings; April 29-30, 2008; Denver, CO. Proc. RMRS-P-59. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 83-108.
  • Woodall, C.W.; Oswalt, C.M.; Westfall, J.A.; Perry, C.H.; Nelson, M.D.; Finley, A.O. 2009. An indicator of tree migration in forests of the eastern United States. Forest Ecology and Management. 257: 1434-1444.
  • Perry, Charles H. (Hobie); Nelson, Mark D. 2009. Cartographic standards to improve maps produced by the Forest Inventory and Analysis program. In: McRoberts, Ronald E.; Reams, Gregory A.; Van Deusen, Paul C.; McWilliams, William H., eds. Proceedings of the eighth annual forest inventory and analysis symposium; 2006 October 16-19; Monterey, CA. Gen. Tech. Report WO-79. Washington, DC: U.S. Department of Agriculture, Forest Service. 325-331.
  • Nelson, Mark; Liknes, Greg; Perry, Charles H. 2009. Combining forest inventory, satellite remote sensing, and geospatial data for mapping forest attributes of the conterminous United States. In: McWilliams, Will; Moisen, Gretchen; Czaplewski, Ray, comps. Forest Inventory and Analysis (FIA) Symposium 2008; October 21-23, 2008; Park City, UT. Proc. RMRS-P-56CD. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 9 p.
  • Smith, W. Brad, tech. coord.; Miles, Patrick D., data coord.; Perry, Charles H., map coord.; Pugh, Scott A., Data CD coord. 2009. Forest Resources of the United States, 2007. Gen. Tech. Rep. WO-78. Washington, DC: U.S. Department of Agriculture, Forest Service, Washington Office. 336 p.
  • Perry, Charles H. (Hobie); Amacher, Michael C. 2009. Forest soils. In: Smith, W. Brad, tech. coord.; Miles, Patrick D., data coord.; Perry, Charles H., map coord.; Pugh, Scott A., Data CD coord. Forest Resources of the United States, 2007. Gen. Tech. Rep. WO-78. Washington, DC: U.S. Department of Agriculture, Forest Service, Washington Office. p. 42-44.
  • Crocker, Susan J.; Brand, Gary J.; Butler, Brett J.; Haugen, David E.; Little, Dick C.; Meneguzzo, Dacia M.; Perry, Charles H.; Piva, Ronald J.; Wilson, Barry T.; Woodall, Christopher W. 2009. Illinois' Forests 2005. Resour. Bull. NRS-29. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 114 p.
  • Pugh, Scott A.; Hansen, Mark H.; Pedersen, Lawrence D.; Heym, Douglas C.; Butler, Brett J.; Crocker, Susan J.; Meneguzzo, Dacia; Perry, Charles H.; Haugen, David E.; Woodall, Christopher; Jepsen, Ed. 2009. Michigan's forests 2004. Resour. Bull. NRS-34. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 210 p.
  • Haugen, David E.; Kangas, Michael; Crocker, Susan J.; Perry, Charles H.; Woodall, Christopher W.; Butler, Brett J.; Wilson, Barry T.; Kaisershot, Dan J. 2009. North Dakota's forests 2005. Resour. Bull. NRS-31. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 82 p.
  • Widmann, Richard H.; Balser, Dan; Barnett, Charles; Butler, Brett J.; Griffith, Douglas M.; Lister, Tonya W.; Moser, W. Keith; Perry, Charles H.; Riemann, Rachel; Woodall, Christopher W. 2009. Ohio forests: 2006. Resour. Bull. NRS-36. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 119 p.
  • Liknes, Greg C.; Woodall, Christopher W.; Perry, Charles H. 2009. Predicting forest attributes from climate data using a recursive partitioning and regression tree algorithm. In: McWilliams, Will; Moisen, Gretchen; Czaplewski, Ray, comps. Forest Inventory and Analysis (FIA) Symposium 2008; October 21-23, 2008; Park City, UT. Proc. RMRS-P-56CD. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 7 p.
  • Piva, Ronald J.; Moser, W. Keith; Haugan, Douglas D.; Josten, Gregory J.; Brand, Gary J.; Butler, Brett J.; Crocker, Susan J.; Hansen, Mark H.; Meneguzzo, Dacia M.; Perry, Charles H.; Woodall, Christopher W. 2009. South Dakota's forests 2005. Resour. Bull. NRS-35. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 96 p.
  • Woodall, Christopher W.; Oswalt, Christopher M.; Westfall, James A.; Perry, Charles H.; Nelson, Mark N. 2009. Tree migration detection through comparisons of historic and current forest inventories. In: McWilliams, Will; Moisen, Gretchen; Czaplewski, Ray, comps. Forest Inventory and Analysis (FIA) Symposium 2008; October 21-23, 2008; Park City, UT. Proc. RMRS-P-56CD. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 9 p.
  • Morin, Randall S; Woodall, Christopher W.; Steinman, Jim; Perry, Charles H. 2009. Use of damage surveys and field inventories to evaluate oak and sugar maple health in the northern United States. In: McWilliams, Will; Moisen, Gretchen; Czaplewski, Ray, comps. Forest Inventory and Analysis (FIA) Symposium 2008; October 21-23, 2008; Park City, UT. Proc. RMRS-P-56CD. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 16 p.
  • Perry, C.H. 2009. Wisconsin's forest resources, 2008. Res. Note. NRS-42. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 4 p.
  • Perry, C.H.; Woodall, C.W.; Liknes, G.C.; Schoeneberger, M.M. 2008. Filling the gap: improving estimates of working tree resources in agricultural landscapes. Agroforest Systems. .
  • Moser, W. Keith; Hansen, Mark H.; Atchison, Robert L.; Brand, Gary J.; Butler, Brett J.; Crocker, Susan J.; Meneguzzo, Dacia M.; Nelson, Mark D.; Perry, Charles H.; Reading, William H. IV; Wilson, Barry T.; Woodall, Christopher W. 2008. Kansas forests 2005. Resour. Bull. NRS-26. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 125 p.
  • Meneguzzo, Dacia M.; Butler, Brett J.; Crocker, Susan J.; Haugen, David E.; Moser, W. Keith; Perry, Charles H.; Wilson, Barry T.; Woodall, Christopher W. 2008. Nebraska's forests, 2005. Resour. Bull. NRS-27. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 94 p.
  • Woodall, Chris W.; Morin, Randall S.; Steinman, Jim R.; Perry, Charles H. 2008. Status of oak seedlings and saplings in the northern United States: implications for sustainability of oak forests. In: Jacobs, Douglass F.; Michler, Charles H., eds. 2008. Proceedings, 16th Central Hardwood Forest Conference; 2008 April 8-9; West Lafayette, IN. Gen. Tech. Rep. NRS-P-24. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 535-542.
  • Perry, C.H.; Everson, V.A. 2008. Wisconsin's Forest Resources, 2007. Res. Note. NRS-26. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 4 p.
  • Hansen, Mark H.; Perry, Charles H.; Brand, Gary; McRoberts, Ronald E. 2008. Wisconsin's forest, 2004: statistics and quality assurance. Resour. Bull. NRS-24. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 98 p.
  • Perry, Charles H. (Hobie); Everson, Vern A.; Brown, Ian K.; Cummings-Carlson, Jane; Dahir, Sally E.; Jepsen, Edward A.; Kovach, Joe; Labissoniere, Michael D.; Mace, Terry R.; Padley, Eunice A.; Rideout, Richard B.; Butler, Brett J.; Crocker, Susan J.; Liknes, Greg C.; Morin, Randall S.; Nelson, Mark D.; Wilson, Barry T. (Ty); Woodall, Christopher W. 2008. Wisconsin's forests, 2004. Resour. Bull. NRS-23. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 104 p.
  • Moser, W. Keith; Hansen, Mark H.; Nelson, Mark D.; Crocker, Susan J.; Perry, Charles H.; Schulz, Bethany; Woodall, Christopher W. 2007. After the blowdown: a resource assessment of the Boundary Waters Canoe Area Wilderness, 1999-2003. Gen. Tech. Rep. NRS-7. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 54 p.
  • Miles, Patrick D.; Jacobson, Keith; Brand , Gary J.; Jepsen, Ed; Meneguzzo, Dacia; Mielke, Manfred E.; Olson, Cassandra; Perry, Charles H. (Hobie); Piva, Ronald J.; Wilson, Barry Tyler; Woodall, Christopher. 2007. Minnesota's forests 1999-2003 (Part A). Resour. Bull. NRS-12A. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 92 p.
  • Moser, W. Keith; Hansen, Mark H.; Treiman, Thomas B.; Leatherberry, Earl C.; Jepsen, Ed; Olson, Cassandra L.; Perry, Charles H.; Piva, Ronald J.; Woodall, Christopher W.; Brand, Gary J. 2007. Missouri's forests 1999-2003 (Part A). Resour. Bull. NRS-10. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 79 p.
  • McWilliams, William H.; Cassell, Seth P.; Alerich, Carol L.; Butler, Brett J.; Hoppus, Michael L.; Horsley, Stephen B.; Lister, Andrew J.; Lister, Tonya W.; Morin, Randall S.; Perry, Charles H.; Westfall, James A.; Wharton, Eric H.; Woodall, Christopher W. 2007. Pennsylvania's Forest 2004. Resour. Bull. NRS-20. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 86 p.
  • O'Connor, M.D.; Perry, C.H.; McDavitt, W. 2007. Sediment Yield From First-Order Streams in Managed Redwood Forests: Effects of Recent Harvests and Legacy Management Practices. In: Standiford, Richard B.; Giusti, Gregory A.; Valachovic, Yana; Zielinski, William J.; Furniss, Michael J., technical editors. 2007. Proceedings of the redwood region forest science symposium: What does the future hold? Gen. Tech. Rep. PSW-GTR-194. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture; p. 431-444.
  • Amacher, Michael C.; O'Neil, Katherine P.; Perry, Charles H. 2007. Soil vital signs: A new Soil Quality Index (SQI) for assessing forest soil health. Res. Pap. RMRS-RP-65WWW. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 12 p.
  • Steber, Aaron; Brooks, Ken; Perry, Charles H.; Kolka, Randy. 2007. Surface compaction estimates and soil sensitivity in Aspen stands of the Great Lakes States. Northern Journal of Applied Forestry. 24(4): 276-281.
  • Perry, C.H.; Everson, V.A. 2007. Wisconsin's forest resources, 2006. Res. Note. NRS-2. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 4 p.
  • Leatherberry, Earl C.; Moser, W. Keith; Perry, Charles; Woodall, Christopher; Jespen, Edward; Pennington, Steve; Flickinger, Aron. 2006. Iowa's forests 1999-2003 (Part A). Resour. Bull. NC-266A. St. Paul, MN: U.S. Department of Agriculture, Forest Service, North Central Research Station. 84 p.
  • Woodall, Christopher W.; Perry, Charles H.; Miles, Patrick D. 2006. The relative density of forests in the United States. Forest Ecology and Management 226 (2006) 368?372.
  • Perry, Charles H. 2006. Wisconsin's forest resources in 2004. Resour. Bull. NC-261. St. Paul, MN: U.S. Department of Agriculture, Forest Service, North Central Research Station. 34 p.
  • Perry, Charles, H. (Hobie); Brand, Gary J. 2006. Wisconsin's forest resources, 2005. Resour. Bull. NRS-2. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station. 32 p.
  • Woodall, Christopher; Johnson, Dan; Gallion, Joey; Perry, Charles; Butler, Brett; Piva, Ron; Jepsen, Ed; Nowak, Dave; Marshall, Phil. 2005. Indiana's forests 1999-2003 (Part A). Resour. Bull. NC-253A. St. Paul, MN: U.S. Department of Agriculture, Forest Service, North Central Research Station. 94 p.
  • Perry, C. H.; Woodall, C. W.; Schoeneberger, M.M. 2005. Inventorying trees in agricultural landscapes: towards an accounting of working trees. In: Brooks K.N. and Ffolliott P.F. (eds) Moving Agroforestry into the Mainstream. Proc. 9th N. Am. Agroforest. Conf., Rochester, MN. 12-15 June 2005 [CD-ROM]. Dept. Forest Resources, Univ. Minnesota, St. Paul, MN, 12 p.
  • O'Neill, Katherine P; Amacher, Michael C.; Perry, Charles H. 2005. Soils as an indicator of forest health: a guide to the collection, analysis, and interpretation of soil indicator data in the Forest Inventory and Analysis program. Gen. Tech. Rep. NC-258. St. Paul, MN: U.S. Department of Agriculture, Forest Service, North Central Research Station. 53 p.
  • Perry, C. Hobart; Miller, Ryan C.; Kaster, Anthony R.; Brooks, Kenneth N. 2000. Watershed management implications of agroforestry expansion on Minnesota's farmlands. In: Ffolliott, Peter F.; Baker Jr., Malchus B.; Edminster, Carleton B.; Dillon, Madelyn C.; Mora, Karen L., tech. coords. Land Stewardship in the 21st Century: The Contributions of Watershed Management; 2000 March 13-16; Tucson, AZ. Proc. RMRS-P-13. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 339-342.

National Research Highlights

Forest Land Estimates Improved by Novel Automated Mapping Technique Using Winter Satellite Imagery (2011)
Most automated satellite-based approaches for mapping forest lands rely on summer satellite imagery and are usually inconsistent with FIA plot-based estimates. Incorporating winter imagery in the mapping approach helps reduce the abundant false positives for forest and forest disturbance that frequently occur during the growing season, especially where forest is intermixed with wetland and agricultural landscapes. Reliable estimates of forest lands between FIA field plots allow customers the opportunity to explore forest dynamics more confidently beyond the grid of FIA plots.


Linking Land Use to Water Quality (2014)
Sediment and phosphorus delivery to the Great Lakes is influenced by land use and land cover patterns. Forest Service scientists studied the impacts of these patterns on streams draining into the western Great Lakes (Superior and Michigan). Their results from studying gauged streams may be used to prioritize restoration investments in watersheds that are not monitored.


Last updated on : 08-Jul-2015